Intercooler Fan/Pump cooldown test
Installed dual SPAL fans, and intercooler pump switch.
Tested on 85 degree day, by driving about 15 miles, accelerated moderately, stop and go traffic. Parked and measured intercooler fluid temp with digital fluid thermometer
Test 1 - leave engine running, fans on (intercooler pump is running because engine running)
Temp started at around 102 degrees; cooled down at rate of about 1 degree/minute. About 20 minutes to get back down to ambient or close to it.
Test 2 - drove around again, intercooler temp up to 105 degrees or so. Parked. turned engine OFF. turned on fans AND pump switch.
Temp decreased about 2 to 2.5 degrees/minute (much better than test 1). less than 1/2 the time of test 1 to get back down close to ambient.
Waiting to see how this affects consistency at track, but it appears to help out quite a bit. (both fans and pump switch). i'm also going to play around with other fluid types. for now, i have stock fluid in intercooler with about 4 or 5 ounces of water wetter. if anyone has a good combo, please let me know.
Dave O
2001 L
Tested on 85 degree day, by driving about 15 miles, accelerated moderately, stop and go traffic. Parked and measured intercooler fluid temp with digital fluid thermometer
Test 1 - leave engine running, fans on (intercooler pump is running because engine running)
Temp started at around 102 degrees; cooled down at rate of about 1 degree/minute. About 20 minutes to get back down to ambient or close to it.
Test 2 - drove around again, intercooler temp up to 105 degrees or so. Parked. turned engine OFF. turned on fans AND pump switch.
Temp decreased about 2 to 2.5 degrees/minute (much better than test 1). less than 1/2 the time of test 1 to get back down close to ambient.
Waiting to see how this affects consistency at track, but it appears to help out quite a bit. (both fans and pump switch). i'm also going to play around with other fluid types. for now, i have stock fluid in intercooler with about 4 or 5 ounces of water wetter. if anyone has a good combo, please let me know.
Dave O
2001 L


